Book/Report

FZJ-2016-04505

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Performance assessment of the (Th, U)O$_{2}$ HTI-BISO coated particle under PNP/HHT irradiation conditions

Kania, M. J. (Corresponding author)FZJ* ; Nickel, H.FZJ*

1980
Kernforschungsanlage Jülich, Zentralbiliothek, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/12245

Report No.: Juel-1685

Abstract: The HTI Biso Particle, Variant-I: consisting of a dense 400 $\mu$m-diameter (Th, U)O$_{2}$ -kernel with a Biso coating using a methane derived pyrocarbon layer (HTI), is a candidate fuel for the advanced PNP/HHT High Temperature Reactor systems. This report presents the results of a comprehensive performance assessment of Variant-I represented by six relevant particle batches irradiatedin 12 accelerated irradiation experiments. Fuel performance was judged based upon PNP/HHT qualification requirements with regard to in-reactor operating conditions and end-of-life (EOL) coated particle failure fraction. Fuel operating conditions in each irradiation experiment were obtained from two sources: 1) a thorough review of all available irradiation data on each experiment; and 2) a two-dimensional (R,$\sigma$) thermal modeling computer code, R2KTMP, was developed to calculate fuel operating temperature distributions within spherical elements. End-of-life particle failure fractions were determined from: gaseous fission product release, based on in-reactor R/B measurements and postirradiation annealing and room temperature investigations; solid fission product release, from single particle $^{137}$Cs release into fuel element matrix and hot-gaseous chlorine leaching; and visual and [...]

---

Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000 ; Retrocat)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

---

Database coverage:

---